Diffraction Gratings for optical communication are the components, which
take a key role in communication network system in the long term, and high
reliability is demanded of them.
These products have passed test in accordance with the Telcordia
GR-1221-CORE which is required for the passive optical components.
These are Au (gold) coated replica gratings from master diffraction
gratings manufactured by using high accuracy two-beam interference. These have
high relative diffraction efficiency for TM-polarized light (Vibration of
electric field oriented perpendicular to the direction of the grating grooves)
and are suitable for optical communication, industrial measurement across near
infrared spectral regions which high performance and environment resistance are
required.
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